Don't allow int<->pointer conversions.
Normally we don't have -Werror for upstream code, but for those warnings
that probably point to 32-bit assumptions about pointers, we want those
warnings to always be errors.
Change-Id: Ibece9caf09b2f7989ca600ef448d07868669a8fb
diff --git a/libc/Android.mk b/libc/Android.mk
index a39b060..f4fdb4c 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -562,7 +562,13 @@
-DINET6 \
-I$(LOCAL_PATH)/private \
-DPOSIX_MISTAKE \
- -Wall -Wextra
+ -Wall -Wextra \
+
+# Try to catch typical 32-bit assumptions that break with 64-bit pointers.
+libc_common_cflags += \
+ -Werror=pointer-to-int-cast \
+ -Werror=int-to-pointer-cast \
+ -Werror=type-limits \
ifeq ($(strip $(DEBUG_BIONIC_LIBC)),true)
libc_common_cflags += -DDEBUG